Transformers Condition assessment services

EA Technology’s Transformer Testing service offers a comprehensive range of diagnostic tests to assess the condition of transformer. Results can be used to identify transformers at risk of failure, to improve performance and extend transformer life.

A full suite of state-of-the-art tests including fingerprint tests for later comparison of fault or degradation

Helps avoid expensive failures and downtime

Provides essential data for cost effective asset management

Highly knowledgeable and experienced diagnostic engineers

Power transformers are among the most strategically important and expensive components on any network. EA Technology’s Diagnostic Transformer Testing uses the very latest techniques and equipment to accurately assess the condition of these key assets, ensuring optimum performance and identifying potential faults before they lead to failures.

The Transformer Testing includes:

Tan Delta Testing – to assess condition of transformer major insulation or individual bushings condition and degradation over time

Sweep Frequency Response Analysis – to locate mechanical defects

Leakage Reactance – to compare the value to the rating plate

Turns Ratio – to ensure the basic circuit and that all phases are balanced and any tap changer is working correctly

Partial Discharge Measurement – for early detection of insulation breakdown in cable boxes

As well as being an essential part of condition based asset management, Transformer Testing should also be undertaken when a new transformer is commissioned as a fingerprint data collection for later comparison, following repairs and to diagnose faults. Regular Transformer Testing, to identify faults early, will minimise expensive replacement costs.